Apparatus for disintegrating pulp.



W. H. STOBIE. APPARATUS FOR DISINTEGRATING PULP.

APPLICATION FILED MAR. 15, 1913.

Patented Jqne 9, 1914.

W A llorney WILLIFAM H. STOBIE, 0F WATERVILLE, MAINE.

APPARATUS FOR DISINTEGRATIN G PULP.

Specification of Letters Patent.

Patented June 9, 1914.

Application filed March 15, 1913. Serial N 0. 7 54,652.

To all whom it may concern:

Be it known that I, WILLIAM H. Sronm, of Waterville', ,in the county of Kennebec and State of Maine, have invented certain new 'and useful Improvements in Apparatus for Disintegrating Pulp; and I do hereby declare the following to be a full. clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an im rovement in apparatus for disintegratin pu p, the object being to provide improve means for dividing or separating the fibersof the stock, without breaking or cutting them into short lengths, thereby producing a stock that will felt better and more uniformly than the stock from an ordinary beating engine, and my invention consists in a target having a groove or gutter and a nozzle discharging the pulp into said gutter in the direction of the length of the latter, the face of the ter being serrated or roughened.

y invention further consists in providing a rectangular target or slab with a series of gutters, and a discharge nozzle for each gutter, each nozzle discharging in the general direction of the length of the gutter.

I My invention further consists in certain details of construction and combinations of gut . parts as will be more fully explained and pointed out in'the claims.

In the accompanying drawings, Figure l is a diagrammatic view in plan of my improvement. Fig. 2 is a view in end elevation of the target, and the nozzles in their proper relative positions, and Fig. 3 is a similar view. of a modified form.

1 represents a target preferably made of metal, but which may be made of stone, emery or other suitable material. This target is preferably rectangular in shape and is provided with a plurality of grooves or gutters 2, V-shape in crosssection and extending in the irection of the length of the target. Each target may however have only one gutter. The surfaces of the gutters are serrated or toothed as shown in Figs. 2

.and 3, and the nozzles 3 are located so as to discharge the pulp against the target in the direction of the length of the gutter. The nozzles are located with their long axis approximately in line with the center of the gutters, as shown in Fig. l, and preferably tangentially thereto as shown in Figs. 1 and 2 so as to strike the target a glancing blow,

' thus causing the pulp to spread out and make repeated contacts with the serrations before it leaves the target. The gutters are located, preferably on the inner or lower face of the target, and the targets are preferably slightly inclined downwardly, so that the pulp stream from the nozzles, which are located horizontally below the targets as in Fig. 1, will be deflected into the vat or tank 4, thus preventing any upward splashing of the pulp. This pulp may "be carried by means of a pump and pipes from the tank 4 to the nozzles, continuously until the pul has been properly disintegrated, and the target may be adjustable longitudinally so as to present a new working surface to the action of the pulp streams, whereby the whole serrated surface of the gutters may be used up before removing'the target for redressing or replacement.

The target is preferably located in the vat containing the paper stock which has mixed with a ency where it can be readily pumped and conveyed through pipes to the nozzles 3, which are so located as to forcibly discharge the streams against the serrated faces of the gutters and tangentially thereto. targets located in the vats, the stock falls back into the vat and will be carried around and again forcibly projected against the targets until it is in proper condition for felting. The targets may however be located outside of the vats, so that the stock after one contact with the target, may be collected and carried off for the next step in the process.

In the construction shown in Fig. 3, the gutters are preferably semi-circular in cross section, instead ,of being V-shape with fiat surfaces as in Fig. 2. The action of the serrated 0r toothed faces on the stock is to divide or separate the fibers without breakmg or cutting them or reducing their lengths. and the object in providing the targets with elongated gutters and forcibly ejecting the stock into the gutters in the direction of the length of the latter and tangentially thereto, is to more closely confine the stock and cause it to make repeated contacts with the serrations before it falls back into the vat.-

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. In apparatus for disintegrating fibrous gutter therein,'the surface of the gutter ing Serrated or roughened, and a nozzle located to discharge the pulp stream against the gutter in the direction of the length of the latter.

2. In apparatus for disintegrating fibrous stock, the combination of a target having a gutter therein, the surface of the gutter being serrated or roughened, and a nozzle located to discharge the pulp stream tangentially into the gutter and in the direction of the length of the latter.

3. In apparatus for disintegrating fibrous stock, the combination of a target having a gutter on its under side, the latter having a serrated or roughenedsurface, and a nozzle located in a plate below the target for disstock, the combination of a target having) a plurality of gutters in stream into the gutter in the direction of the length of the latter.

4. In apparatus for disintegrating fibrous ulp, the combination of a target having a one face of the latter, the surfaces of the gutters being roughened or serrated, and a nozzle for each gutter, each nozzle discharging tangentially into its gutters in the direction of the length of the latter.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

WILLIAM H. STOBIE.

charging the pulp JOSEPH It. Goonwm. 

